MARIE KLISH WEEKS (MD) – Radiation Oncology Physician, NPI 1568434207
Radiation Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
131 RADIATION ONCOLOGY in CO
Provider Addresses for MARIE KLISH WEEKS (MD)
7951 E MAPLEWOOD AVE STE 350
GREENWOOD VILLAGE, CO 801114758
Phone: (303) 930-7895
Fax: (303) 267-4477
Type: Mailing
22 W DRY CREEK CIR
LITTLETON, CO 801204413
Phone: (303) 730-4700
Fax: (303) 930-8053
Type: Location
East Maplewood Avenue, Greenwood Village, Arapahoe County, Colorado, United States
GREENWOOD VILLAGE, CO 801114726
Phone: (303) 930-7800
Fax: (303) 930-7860
Type: Mailing
Longmont United Hospital, 1950, Mountain View Avenue, Longmont, Boulder County, Colorado, 80501, United States
LONGMONT, CO 805013129
Phone: (303) 651-5252
Fax: (303) 678-4889
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 27 Open Payments records for all available years, with a total value of $653.
Total Amount is formed as General ($653) + Research ($0) + Ownership ($0) = $653.
Last reported payment date: 2024-12-10 • Largest payer in this snapshot: Novartis Pharmaceuticals Corporation ($88).
Total Amount
$653
General + Research + Ownership
Payments
27
Total payment records
General Amount
$653
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-10
Latest reported date
Top Companies
Largest payers in this snapshot
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2006-09-05
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20060905000181 | I | Radiation Oncology | CO | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| Q9967 | Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 7,205 | 81 | $0 |
| 77014 | Ct guidance for insertion of radiation therapy fields | 213 | 15 | $0 |
| J1100 | Injection, dexamethasone sodium phosphate, 1 mg | 210 | 11 | $0 |
| G6015 | Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session | 192 | 14 | $0 |
| G6013 | Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 11-19 mev | 168 | 15 | $0 |
Insurance plans in this area (ZIP 80111)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | OH | |
| Physician Assistant | CO | |
| H E M A T O L O G Y/ O N C O L O G Y | CO | |
| Radiation Oncology | CO | |
| Medical Oncology, Hematology/Oncology | CO | |
| - | CO | |
| Internal Medicine, Medical Oncology | CO | |
| Physician Assistant | CO | |
| Medical Oncology | MO | |
| - | CO |
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